Research & reports
Peer-reviewed research and reports on community urban agriculture, food education, composting, welfare and more.
Theme
Critical findings
5 results
Spatiotemporal variability and functional redundancy obscure effects of urbanization on strawberry pollinators
2025Kyla D. Schulte, Caleb J. Wilson, Anna Tawril, Mary A. Jamieson · Ecosphere · United States (Michigan)
A three-year study across 10 strawberry farms along a rural-urban gradient in Michigan, USA, characterized bee abundance, diversity, and community composition. The study found that urbanization, measured as impervious surface cover, had no consistent effect on overall bee abundance and diversity. While urbanization differentially influenced specific taxa (Halictini positively in year one, Ceratinini negatively in year three), the overall impact was limited, with wild bees, especially native species, being important pollinators in urban agriculture.
Limited or null effectPollinatorsBiodiversityUrban–rural linkageAbiotic and biotic drivers of strawberry productivity across a rural-urban gradient
2021Kyla D. Scherr, Mary A. Jamieson · Basic and Applied Ecology · United States (Michigan)
This three-year study investigated environmental factors influencing strawberry productivity for two cultivars at ten farms across a rural-urban gradient in Michigan, USA. It found no direct effect of urbanization on strawberry production or fruit pathogen and pest damage, but temperature significantly influenced crop productivity, with cooler rural and warmer urban temperatures limiting fruit number. While no relationship was found between urbanization and overall arthropod pest, predator, or pollinator abundances, Vespidae abundance was positively associated with urbanization, and Araneae abundance was negatively associated.
Limited or null effectUrban–rural linkageBiodiversityClimate changeAgricultura urbana e conservação de agrobiodiversidade: um estudo de caso em Mato Grosso, Brasil
2012Mirella Cultrera, Maria Christina de Mello Amorozo, Fábio Cop Ferreira · SITIENTIBUS série Ciências Biológicas · Brazil (Mato Grosso)
An ethnobotanical study in five peripheral neighborhoods of Santo Antônio do Leverger, Mato Grosso, Brazil, surveyed 135 households and detailed 30 to characterize food plant cultivation. Ninety-seven species from 38 families were identified across homegardens, fields, and empty lots. While some species were common, the similarity between species/varieties across households was generally below 50%, and many had low frequency, revealing a vulnerability to species loss despite social network circulation.
Limited or null effectBiodiversityCommunityHeirloom & landraceUrban–rural linkageSmall scale additions of native plants fail to increase beneficial insect richness in urban gardens
2010Kevin C. Matteson, Gail Langellotto · Insect Conservation and Diversity · United States (New York City)
The ability of adding 70 plants of seven native wildflower species over two years to augment beneficial insect richness, including bees, butterflies, and predatory wasps, was assessed in New York City community gardens. Bayesian analyses failed to find a strong influence of the native plant additions on beneficial insect richness, even after correcting for prior floral abundance. Butterflies and megachilid bees were found to heavily utilize introduced ornamental and crop flowers in these gardens, even when native flowers were present.
Limited or null effectCommunityBiodiversityPollinatorsContemporary streamkeepers : a comparison of two urban horticultural restoration programs
2003Charles Rowley · eScholarship (California Digital Library) · United States (California)
This paper compared the successes and failures of two urban creek restoration programs in California: Temescal Creek (initiated nearly 30 years ago) and White Oak Creek (completed about four years ago). Based on the author's success criteria, the more recent White Oak Creek program achieved significant success, while the earlier Temescal Creek restoration did not reach generally acceptable success levels. This difference is attributed to changes in management and scientific practice over 30 years, including substantial changes in the legal basis for restoration, improved monitoring requirements, and the critical role of properly engineered low flow distribution structures.
Limited or null effectCommunityBiodiversityPolicy